TypeScript SDK Advanced Patterns

const traceId = 'checkout-8841';
const openai = whyops.openai(new OpenAI({ apiKey: process.env.WHYOPS_API_KEY }));
openai.defaultHeaders = {
  ...(openai as any).defaultHeaders,
  'X-Trace-ID': traceId,
  'X-Thread-ID': traceId,
};
const trace = whyops.trace(traceId);

const spanId = await trace.toolCallRequest('charge_card', [
  { name: 'charge_card', arguments: { amount: 4999, currency: 'usd' } },
]);

const result = await chargeCard();

await trace.toolCallResponse(
  'charge_card',
  spanId,
  [{ name: 'charge_card', arguments: { amount: 4999, currency: 'usd' } }],
  result,
);

await trace.llmResponse('anthropic/claude-sonnet-4-5', 'anthropic', 'Done.', {
  usage: {
    promptTokens: 1200,
    completionTokens: 240,
    totalTokens: 9940,
    cacheReadTokens: 8200,
    cacheCreationTokens: 300,
  },
  latencyMs: 860,
});

const whyops = new WhyOps({
  apiKey: process.env.WHYOPS_API_KEY!,
  agentName: 'customer-support-agent',
  agentMetadata: { systemPrompt: 'You are helpful.', tools: [] },
  proxyBaseUrl: 'https://proxy.internal.example.com',
  analyseBaseUrl: 'https://analyse.internal.example.com/api',
});